Picker stop



0d. 19, 1943. BELFORT] 2,332,366

PICKER STOP Filed Jan. 5, 1942 INVENTOR. 650865 E BEL FOETI.

ATTOENE X Patented Oct. 19, 1943 G'eorgei F; Belforth, Milford; Massassignnr to 1 DEaPCr-JQO FDQEMEQB, Hwesla eLMass-ia orpse; W

, rationpi M ri li r Application ranuary s, 194Z'; Serial 4255p: eq(01.139-161) This invention relates to an adjustable means for stoppingthe travel otja picker in a predetermined position. H

In a filling replenishing loom Where reserve filling carriersautomatically are taken from a magazine and placed in the shuttle upon ezhaustion of the filling from the' carrierpresently in the shuttle, itisnecessarythat the shuttle be accurately positioned for thereplenishing operation properly to'be accomplished; The shuttle must bestopped n a osit n irect en a h e; m a ine so that the, new-fillingcarrier can be forced into ;the

holdingmeans provided in the shuttle and the old filling carrierejectedtherefrom.

On coming into the, shuttle box, theshuttle contacts the pickerandforces it, and the picker stick, outwardly. It is usual to provide'astopping means at the outer endof the lay to-c'heck the travel of thepicker stick, and-hence also the travel ofthe picker attached to it, Acommon means for accomplishing this is the use o f-a loop of leatherplaced; on the lay to abut the shank of the picker stick. Such a meanslacks ready adjustability. I

It has alsobeen proposed-to make stopping de-, vices with somedegreeof-'adjustability so that the position in which the picker stick would-b'e stopped could'be varied, but these prior devices were objectionablein that ptheyrequired a modification of the lay end to adaptit'toreceivethem; or were comparatively complicated in construction and operation,or lacked sufficient strength to remain in operative position under theforces encountered in modern high speed'looms,

Another objection found in such priordevices is that they are madetocontact thepickerstick along its shank to check its travel. In such asituation, when the motion of the picker stick is checked abruptly, thetip of the stick will tend to bend. and whip, using the stop as a pivotpoint, and cause the shuttle to rebound out of its proper position.

It is an object of this invention to provide for a picker an adjustablestopping device which readily can be applied to a loom withoutalteration of existing parts and which will remain in adjustment to stopthe picker in a predetermined position during the continuous operationof a high speed loom.

These and otherobjects may be attained by the I .erre nisa qrti e pi hee e? s el e in Fig. 1; to an enlarged scale taken:from-therearoiitheloom, and showsit h oope'ratije' en:

teensbeware; remie es rena VII-(38.

' i 3:5 m a erspesii iewi a d avse in fie my. evee i i l if sembledg jin, on on e i he, 0 1 h e m r e a eomrs del erie mass dr a theda e e'I'heinagaz' holdsa li irality of filling'carriers; is shoyvn atfii in aposition ready fgr transfer to; a; shuttle F41, The shuttle is T mo heay 1 In thisj positiomthe; spur l g of the shuttle engages the picker 8which ie attached-t9 the-picker stick 9; Therefore the \position; of 5thepicker will determine the position of the shuttlek In order tocontrol; the position of tl'ieSpieker, L'have provided astopfmeans lnsecured toth'e end of-the layjfir The stop; means comprises made ofmetal; or; the=like,- of sufiicient strength to withstand the] stressesimposed onit" by th constant; pounding ot 'th'e -picker. It: has--for1nd in it two s1otsl'2-and- I 3; one of which: isdisposedapproximately parallel-vvitl i the longitudinalarris of the member, andthe other of which: intersects the longitudinal axis atan ahgle of-approximate- 1y forty five degrees. The eXact-dispoSitiOn. of the slotsiswnot;ontrolling in the-prbper 'funm merits setforth subsequently:

One;endgportienof thelbody member ,H has formed; th( er ein' =anopening: I 4a to receive; a stud tioning oi;-myinvention if theymeettheirequiree 15: The stud isattached toaipart lli which com,-

prises a core I! about Which is wrapped a resilient material, such asleather, or the like, I 8. The

resilient material may be fastened to the core t member by-screws l9,passing through the resilient material and screw threaded into the core.

In assembling, the stud is placed through the opening [4, a' lock Washer20 placed over the protruding end thereof, and a nut 2| threaded Ithereon to hold the elements in place.

construction shown, as an exemplary embodiment of my invention, in thedrawing, in which:

Fig. 1 represents a portion of the replenishing side of a loom with myinvention applied to the end of the lay; taken from the front of theloom.

The stop means is attached to the loom by bolts 22 passed through theslots l2 and I3 and screw threaded into appropriate holes formed in aface of the end of the lay 6. It is so placed, 1

that the part I6, will project over the top of the lay and into the pathof travel of the picker 8.

The slots l2 and [3 are arranged in the body member H so that theypermit vertical and longitudinal adjustment of the position of theBLRaLIeIdee' a-bojdy, member H I projecting part I6. They also are sodisposed that the center 23 of the part 16 can be caused to be moved ina straight line parallel with the top surface of the lay.

In adjusting the stop member in working position, the part I6 is placedso that the bottom of the resilient material l8 rests on the top surfaceof the lay, as at 24 and a flat face of .the resilient materlal'l8 lies"flush with the end face of the picker, as at 25. In this position theforce of the picker on contacting the stop means is distributedthroughout the full area of the abutting faces, and a concentration ofhigh stresses over a small area is prevented. Also, the stop mem bercontacts the picker at a point directly in line with the direction ofthe force of impact imposed on the picker by the shuttle, and rebound ofthe shuttle due to bending of the picker stick is prevented. By causingthe projecting member 16 to rest on the top of the lay, the device ismade'more rigid than it otherwise would be. i l

All of these adjustments are made possible by the disposition of theslots I2 and l3 and by the.

revoluble nature of the connection between the partslfi and the bodymember H. The range of adjustment'is indicated by the full lines "8, andI6, and the dotted lines 8, and IS, in Fig. 2."

To find the correct position for the stop means, the shuttle is placedunder the magazine in the proper position for a transfer. The picker ismoved to engage the spur of the shuttle in'close contact. With the bolts22 and the nut 2| in a loosened condition, the stop means is moved untilthe various parts abut each other in the manner described above. Thebolts 22 and the nut 2| are then tightened to place the stop means inoperative condition. I

In operation the stop means will abut the picker on its outward stroketo cause it to stop in the predetermined position. Since the shuttle isin, contact with the picker during the latter part of its outwardstroke, the shuttle also will be stopped in the desired position. Ifwear on the parts causes the elements to become out of adjustment,readjustment is easily and readily made by performing the adjustingoperations set forth above. 7

Having thus described a of my invention, I claim:

1. In a loom, a means for stopping a picker in a predetermined positioncomprising an element having an end of said element extending above thelay of said loom, means for adjustably attaching said element to aportion of said loom, and a member adjustably attached to the saidpreferred modification end of said element in position to rest upon thetop surface of said lay and to bear thereagainst when engaged by thepicker at a predetermined point of its travel.

2. In a loom, a picker stopping device comprising a member arranged tobe adjustably secured to the front face of an end of a lay, a portion ofsaid member extending'above the top of said end of said lay, and a stopmember adjustably fixed to the said portion of said first member andarranged to be positioned to engage the top surface of said lay and toabut the said picker at the extreme outward terminus of its travel.

' 3. In a loom, a means for stopping a picker stick in a predeterminedposition, comprising an element arranged to be placed in the path oftravel of said picker stick, said element having means incorporatedtherewith to pivotally secure it in adjusted position to an arm, saidarm having means formed therein to permit it to be adjustably secured toa face of a lay and to permit said element to rest upon said lay and tobear thereagainst when said element is engaged by the picker as thepicker approaches the outer limit of its movement.

4. In a loom, a picker stopping device comprising a member having slotstherein by which said device can be adjustably secured to an end of alay, said member having a portion thereof extending above the top ofsaid lay, a stop member extending into the path of travel of the pickerand adjustably connected to said extended portion of said first member,and means for rigidly securing said stop member in adjusted position inengagement with the top surface of said lay, whereby said stop membercan be adjusted in position to stop the picker at a predetermined pointof its travel.

5. In a loom, a means for stopping a picker at a predetermined point ofits travel comprising a member arranged to be placed in the path oftravel of said picker, said member being angularly adjustable to enableit to be placed in a position parallel with a face of said picker, saidmember being secured to an arm, said arm having slots therein throughwhich means may be passed to secure said arm to a face of the lay ofsaid loom, said slots being arranged to enable said arm to be adjustedin a vertical and a longitudinal position relative to said lay and in aposition wherein said member will engage the upper surface of said lay,said adjustments being arranged to permit said member to placed in aposition to stop said picker at said predetermined point. I

GEORGE F. BELFORTI.

